All keyword suggestion tools, wonder wheels, insights, and the rest are purely good for trending information and relationships. Specific hard numbers should never be used for any statistical probability analysis in regard to how many visits you expect. That's bogus science. Especially when nobody has ever been able to prove that such original data is accurate. Yet the google Keyword tool is PERFECT for trending and relationship research. Which is at the HEART of the SEO's job. So this article is not correct in it's claim that the GKT shouldn't be used for SEO.

Alan, I agree on the matter of accuracy. When "bed and breakfast porto cesareo" has 4 times more searches than "bed and breakfast", you know there is something wrong. Common sense, not equations, has to rule when using keyword research tools.

"Yet the google Keyword tool is PERFECT for trending and relationship research. Which is at the HEART of the SEO's job."

That assumes it's all distorted equally.

If he had looked up fish pond supplies vs, say, fish pond, he might have seen that fish pond got 30K searches and fish pond supplies got 18k. But fish pond might really get 30k while fish pond supplies does not get anywhere near 18k...